These ones aren't necessarily branded Wega , but do hint at compatibility at other machines. But there does seem to be an element of 'Same Same, but Different' https://capecoffeebeans.co.za/collections/wega/products/e61-portafilter-with-spouts These high quality generic portafilters are designed to work with any machine with an E61 group head. They are complete portafilters and include the handle, portafilter head, spouts (choose the version you want) and filter baskets. While you shouldn't have any issue with any E61 espresso machines, we can confirm that they will be a perfect fit for any Rocket or Wega espresso machine.
